Skip to main content
Ch.10 - Structure and Synthesis of Alcohols
Wade - Organic Chemistry 9th Edition
Wade9th EditionOrganic ChemistryISBN: 9780135213728Not the one you use?Change textbook
Chapter 10, Problem 52b

Devise a synthesis for each compound, starting with methylenecyclohexane and any other reagents you need.
b. cyclohexylmethanol

Verified step by step guidance
1
Step 1: Begin by identifying the functional group transformation required. Methylenecyclohexane is an alkene, and cyclohexylmethanol is an alcohol. This indicates that the synthesis involves converting the alkene to an alcohol.
Step 2: Use hydroboration-oxidation to achieve the anti-Markovnikov addition of water to the alkene. First, react methylenecyclohexane with diborane (B₂H₆) or BH₃·THF to form the organoborane intermediate.
Step 3: Oxidize the organoborane intermediate using hydrogen peroxide (H₂O₂) in the presence of a base, such as sodium hydroxide (NaOH). This step converts the boron group into a hydroxyl group, yielding cyclohexylmethanol.
Step 4: Verify the regioselectivity of the reaction. Hydroboration-oxidation adds the hydroxyl group to the less substituted carbon of the double bond, ensuring the correct product formation.
Step 5: Purify the product using techniques such as distillation or recrystallization, depending on the physical properties of cyclohexylmethanol, to ensure a pure compound.

Verified video answer for a similar problem:

This video solution was recommended by our tutors as helpful for the problem above.
Video duration:
4m
Was this helpful?

Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Synthesis in Organic Chemistry

Synthesis in organic chemistry refers to the process of constructing complex organic compounds from simpler ones through a series of chemical reactions. Understanding the principles of synthesis is crucial for devising pathways to create specific compounds, such as cyclohexylmethanol from methylenecyclohexane. This involves selecting appropriate reagents and reaction conditions to achieve the desired transformation.
Recommended video:
Guided course
00:56
What is an organic molecule?

Reagents and Reaction Mechanisms

Reagents are substances used in chemical reactions to facilitate the transformation of reactants into products. Familiarity with various reagents and their mechanisms of action is essential for predicting the outcomes of reactions. For instance, in synthesizing cyclohexylmethanol, one might use reagents like reducing agents or alcohols, and understanding their roles helps in planning the synthesis effectively.
Recommended video:
Guided course
06:50
Jones Reagent Mechanism

Functional Group Interconversion

Functional group interconversion involves the transformation of one functional group into another within a molecule. This concept is vital in organic synthesis, as it allows chemists to modify compounds to achieve desired properties or reactivity. In the case of synthesizing cyclohexylmethanol, converting a double bond in methylenecyclohexane to an alcohol functional group is a key step in the synthesis process.
Recommended video:
Guided course
02:36
Identifying Functional Groups